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Lexus ES300 Replacement Air Fuel Ratio Sensor Information


Lexus autos have developed a storied and distinctive reputation for providing hand-crafted distinction. Notable carmaker Lexus is renowned for crafting limousines that provide exquisite detailing and sleek performance. Elegant vehicles like your nicely made Lexus ES300 are built to be used with care and attention and also serviced and maintained. Is it smart to spend a big check on a great luxury car, and then cut corners on replacement parts? To maintain the luxury and comfort you made an investment in with your Lexus ES300, it's key to use only the most reliable OEM and upgrade car parts. The Lexus you chose was made using quality and expertise; it should have new replacement parts of a similar high level of quality. People who love performance car or trucks know that there's nothing more vital than putting in the newest new parts and accessories. Support your car's critical systems by investing in the most outstanding high-quality components. An automobile's Lexus ES300 Air Fuel Ratio Sensor calculates the air and fuel levels in the engine, keeping them balanced for perfect performance. The air fuel ratio sensor operates in combination with a car or truck's data processor to decide whether the fuel mix heading to your motor needs to be fine-tuned. Whenever the air-fuel mixture is not adequate, inadequate engine power will be the result; on the other hand, a fuel-heavy air to fuel ratio can cause damage to your motor and unwanted air pollution from your car or truck's tail pipe. Usually the most frustrating thing about maintaining an older vehicle is finding a dependable source for quality parts. If you value your car, be certain to insist on quality parts to fix it. Utilize www.PartsGeek.com whenever you require high quality car and truck parts to receive fantastic service and a fair price every time.


They are available for the following Lexus ES300 years: 2003, 2002, 2001, 2000, 1999, 1998, 1997, 03, 02, 01, 00, 99, 98, 97. This part is also sometimes called Lexus ES300 Wide Range Air Fuel Sensors. We stock air fuel ratio sensor parts for most Lexus models including RX300, RX350, IS250, ES330, RX330, GX470, ES350, IS350, LS460, IS F, GS300, LX470, GX460, RX400h, GS350, RX450h, LX570, GS450h, HS250h, GS460 and LS600h.

We stock these Air Fuel Ratio Sensor brands for the Lexus ES300: Denso and NGK.


Air Fuel Ratio Sensor for Lexus ES300 - Partsgeek
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Review Fitment Notes to Ensure Proper Fit

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(27 Reviews)
4.9 Stars
Denso 234-9021
Air Fuel Ratio Sensor
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Our List Price: $124.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9021
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2000 (00) Lexus ES300 3.0L V6 


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(21 Reviews)
5 Stars
Denso 234-9009
Air Fuel Ratio Sensor
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Our List Price: $132.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9009
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1999 (99) Lexus ES300 3.0L V6 


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(4 Reviews)
5 Stars
Denso 234-9007
Air Fuel Ratio Sensor
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Our List Price: $132.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9007
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream Rear
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1999 (99) Lexus ES300 3.0L V6 


Click to Enlarge
(27 Reviews)
4.9 Stars
Denso 234-9021
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $124.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9021
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2001 (01) Lexus ES300 3.0L V6 


Click to Enlarge
(8 Reviews)
5 Stars
Denso 234-9042
Air Fuel Ratio Sensor
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Our List Price: $120.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9042
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2002 (02) Lexus ES300 3.0L V6 


Click to Enlarge
(8 Reviews)
5 Stars
Denso 234-9042
Air Fuel Ratio Sensor
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Our List Price: $120.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9042
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2003 (03) Lexus ES300 3.0L V6 


Click to Enlarge
(Read reviews)
Our List Price: $120.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9047
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Rear
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2002 (02) Lexus ES300 3.0L V6 


Click to Enlarge
(3 Reviews)
5 Stars
Denso W0133-1601059
Air Fuel Ratio Sensor
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Product List Price:
$253.74
Our List Price: $154.48
with FREE Shipping
(>25) In Stock
Product SKU: W0133-1601059
Product Note: First Time Fit - Production: -07/31/1999, Before Catalyst Radiator Side
Position of Product: Front
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle Production Range
1999 (99) Lexus ES300 To:07-31-99 


Click to Enlarge
(Read reviews)
Product List Price:
$253.48
Our List Price: $176.48
with FREE Shipping
(>25) In Stock
Product SKU: W0133-1601176
Product Note: First Time Fit - Production: -06/30/2001, Before Catalyst Firewall side
Position of Product: Rear
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle Production Range
2001 (01) Lexus ES300 To:06-30-01 


Click to Enlarge
(21 Reviews)
5 Stars
Denso 234-9009
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $132.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9009
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream Front
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1998 (98) Lexus ES300 3.0L V6 


Click to Enlarge
(4 Reviews)
5 Stars
Denso 234-9007
Air Fuel Ratio Sensor
Close
Loading Reviews...
Our List Price: $132.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9007
Product Note: OE Style -- Calif.; DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Features:
  • Manufactured to detect the amount of exhaust gas air fuel ratio
  • Constructed from durable material
  • Features zirconia solid electrolyte
  • Highly accurate
  • Easy installation
Position of Product: Upstream Rear
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
1998 (98) Lexus ES300 3.0L V6 


Click to Enlarge
(Read reviews)
Product List Price:
$253.74
Our List Price: $181.48
with FREE Shipping
(>25) In Stock
Product SKU: W0133-1601122
Product Note: First Time Fit - Production: -07/31/1999, Before Catalyst Firewall Side
Position of Product: Rear
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle Production Range
1999 (99) Lexus ES300 To:07-31-99 


Click to Enlarge
(Read reviews)
Product List Price:
$253.74
Our List Price: $176.48
with FREE Shipping
(>25) In Stock
Product SKU: W0133-1601176
Product Note: First Time Fit - Before Catalyst Radiator Side
Position of Product: Front
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle
2000 (00) Lexus ES300


Click to Enlarge
(Read reviews)
Our List Price: $120.33
with FREE Shipping
(>35) In Stock
Product SKU: 234-9047
Product Note: OE Style -- DENSO is the O.E. Manufacturer / Air Fuel Ratio Sensor
Position of Product: Upstream Rear
Inventory: In Stock
Condition: New

Shipping Options:
Free Ground Shipping
Additional Fitment Information: Catalog: B
Vehicle Engine
2003 (03) Lexus ES300 3.0L V6 


Click to Enlarge
(Read reviews)
Product List Price:
$253.74
Our List Price: $181.48
with FREE Shipping
(>25) In Stock
Product SKU: W0133-1601122
Product Note: First Time Fit - Production: 08/01/1998-, Before Catalyst Firewall Side All 50 States
Position of Product: Rear
Inventory: In Stock
Condition: New

Made By: OEM
(Original Equipment Manufacturer) - a replacement part made by the manufacturer of the original part.

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Additional Fitment Information: Catalog: A
Vehicle Production Range
1998 (98) Lexus ES300 Fr:08-01-98 


Click to Enlarge
(Read reviews)
Our List Price: $143.98
(2) In Stock
Product SKU: 24658
Product Note: Direct Fit 4-Wire A/F Sensor -- B1S1; OE Replacement
Position of Product: Upstream Rear
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: H
Vehicle Engine
2001 (01) Lexus ES300 3.0L V6 


Click to Enlarge
(Read reviews)
Our List Price: $143.98
(1) In Stock
Product SKU: 24827
Product Note: Direct Fit 4-Wire A/F Sensor -- B2S1; OE Replacement
Position of Product: Upstream Front
Inventory: In Stock
Condition: New

Shipping Options:
Ground
Additional Fitment Information: Catalog: C
Vehicle Engine
2003 (03) Lexus ES300 3.0L V6 


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Research on Air Fuel Ratio Sensor for Lexus ES300

The air fuel ratio sensor is part of a system that allows you car's engine computer to adjust fuel consumption and timing. That is how your Lexus ES300 gets its power. A bad sensor will throw off the signal used to control the air/fuel mixture. Serious engine trouble can result if the sensor malfunctions or fails. The sensor is replaceable, which is fortunately not hard to do, and not expensive if you get it from a reputable online supplier

How to Know an Air Fuel Ratio Sensor Is Bad

A problem with the sensor will cause fuel efficiency to decline. The engine will waste more fuel because the oxygen content in the exhaust will be miscalculated. You'll get fewer miles per gallon and have to fill the gas tank more often. Engine power will decrease as well. A decrease in power output is due to delays in the sensor signal, so the engine too won't respond as quickly to demands such as acceleration. The 2000 Lexus ES300 air fuel sensor location allows it to provide accurate information. If this is lacking, then the engine will also idle roughly or stall.

What Is the Air Fuel Ratio Sensor?

The sensor is designed to detect a rich or lean mixture. Oxygen levels are indicative of how much fuel is present, and a voltage is sent to the engine computer that corresponds with a rich, lean, or normal mixture. Your 2003 Lexus ES300 air fuel ratio sensor is designed to operate in high temperatures. The computer reads its signals, and in turn adjusts the current to maintain the sensor's set operating voltage. Modern wide band sensors have reference cell and pump cell layers and a monitoring chamber. The sensor is a rather small device, with a cable and connector for a link to the engine computer.

What Is Air to Fuel Ratio?

It is the mass ratio of the amount of air to fuel in an internal combustion engine. A perfect air/fuel ratio is needed for optimal performance and to reduce pollution. The idea is for there to be enough air to burn all fuel present - this is known as a stoichiometric mixture. Lexus ES300 oxygen sensor locations, usually by the exhaust manifold, allow the unit to accurately measure the ratio as the mixture leaves the combustion chamber.

Cost of O2 Sensor Replacement

A 2000 Lexus ES300 O2 sensor in front costs $156 to $303, which includes a small amount of labor. The rear sensor goes for $178 to $331. The air fuel ratio sensor is an important part to replace. A bad one will even cause the vehicle to fail an emissions test. If your car's 1999 Lexus ES300 air fuel ratio sensor has started to go, then PartsGeek.com has exactly what you need at a better price. All of our automotive parts are sold exclusively on our website, which has reduced operating costs to the point we can help customers save a lot on important repairs. Don't let your car's performance decline. New sensors and more are more affordable than ever before.


Some of our Customer Reviews
Very Satisfied
Reviewer: olive

Great service and fast turn around. very satisfied

1999 Lexus ES300 Air Fuel Ratio Sensor

Very Satisfied
Reviewer: L. Sims

The sensors arrived earlier than anticipated; in good condition and the exact part I ordered and needed to fit my lexus ES. I am very pleased with the entire transaction, the website was easy to navigate, the shipping and tracking systems very helpful. Add that the price was competitive, I highly recommend Parts Geek.

1999 Lexus ES300 Air Fuel Ratio Sensor

Very Satisfied
Reviewer: John Alex

Mechanic said this Denso A/F sensor is a OEM match to the original Toyota equipment replacement at about half the price at the dealer. Car runs perfectly now. Quick delivery too.

1999 Lexus ES300 Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Ms. McPherson

I received my part on time. Service of deliver was outstanding. Fit my vehicle and now the everything is GREAT. Thank so much for Parts Geek. You saved me a lot of money. I am Very Satisfied Thank You

2000 Lexus ES300 Air Fuel Ratio Sensor

Very Satisfied
Reviewer: Michael C

Very satisfied with how simple the entire procedure was.

2003 Lexus ES300 Air Fuel Ratio Sensor


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